#include <sstream>
#include <fstream>
#include <string>
#include "include.h"
//将int转换成string是件麻烦的事，使用流操作，将变的简单
void test()
{
	//std::iostream os; 错误
	std::stringstream os;
	std::string str;
	int a=99444;
	os<<a;
	os>>str;
	std::cout<<"a = "<<a<<"通过流转化为string str = "<<str<<std::endl;
}
void test_io()
{
	test();
}